New Top End Combo Give Me Your Hp Estimates
#1
New Top End Combo Give Me Your Hp Estimates
Currently I have a 375 ci iron block setup built by ARE back in early 2001.
59cc 5.3 stage II heads @ 11.5 COMPRESSION, Lunati 237/242 56X/56X 114 cam, Fast 90 setup and 1-3/4 Groty headers. Thru my 4L80E AND 9" I put down 390 rwhp.
The new setup consists of:
TSP CNC L92 HEADS MILLED TO 65CC WITH CUSTOM COMETIC GASKET FOR 11.3 COMPRESSION.
L76 INTAKE PACKAGE W/ 90MM TB FROM MY CURRENT FAST SETUP
COMP CAM 236/242 640/647 114 This cam was sitting around so I'm trying it, although it may not be perfect. But since the L92 cam selection seems to be all over the place I figured I would try it before shelling out 300 - 400 for a different cam.
I have an estimated guess of 470 RWHP?
What do you think?
Setup will be installed and tuned by the end of next week. Then the 2 stage kit goes back on.
59cc 5.3 stage II heads @ 11.5 COMPRESSION, Lunati 237/242 56X/56X 114 cam, Fast 90 setup and 1-3/4 Groty headers. Thru my 4L80E AND 9" I put down 390 rwhp.
The new setup consists of:
TSP CNC L92 HEADS MILLED TO 65CC WITH CUSTOM COMETIC GASKET FOR 11.3 COMPRESSION.
L76 INTAKE PACKAGE W/ 90MM TB FROM MY CURRENT FAST SETUP
COMP CAM 236/242 640/647 114 This cam was sitting around so I'm trying it, although it may not be perfect. But since the L92 cam selection seems to be all over the place I figured I would try it before shelling out 300 - 400 for a different cam.
I have an estimated guess of 470 RWHP?
What do you think?
Setup will be installed and tuned by the end of next week. Then the 2 stage kit goes back on.
#2
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My SWAG
I think that 470 is real close. I've got a similar setup (402/L92) with a slightly different cam (236/249). I'll be real happy with 480-490.
My Cartex clutch is on the way and I don't know how much longer I can wait for the caddy lifters.
Bob K.
My Cartex clutch is on the way and I don't know how much longer I can wait for the caddy lifters.
Bob K.
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#8
I guess time will tell on the lift numbers. Keep in mind this motor was built in 2001. I don't recall stock stroke, .060 over 6.0 liters making 450 to the tires 6 years ago. Keep in mind that a lot of advancements in camshaft design and headporting have been made in the past 6 years.
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Originally Posted by WKMCD
I agree. That cam is way short of lift for the L92's but let us know.
Since when is .640/.647 lift short for a 375 ci engine? Let me guess, you would run a 3/4 race solid roller cam.
Yo BDG, The new sutup, TRUE. 485/450 thats my prediction. Sorry you miss the Vette but what the hell is a 99 Nut Hugger Z?
Last edited by RamAirTA; 05-04-2007 at 08:15 PM.